Remove clickjacking.XFrameOptionsMiddleware, since we now have

this protection in the nginx setup.

Fixes #1434

Author: malemburg

pycon/settings.py

@@ -219,7 +219,6 @@ def _(x):
     'django.middleware.locale.LocaleMiddleware',
     'django.middleware.http.ConditionalGetMiddleware',
     'django.middleware.common.CommonMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'cms.middleware.user.CurrentUserMiddleware',
     'cms.middleware.page.CurrentPageMiddleware',
     'cms.middleware.toolbar.ToolbarMiddleware',